Henry w



H. W. OLIVER.

BEAM GOMPASSES.

Patented Nov. 19,1889.

...i MSDN/? m l INVENTOR: A '5f/af @4L/'0S WITNESSES ATTORNEYS.

N PETERS, Pnwwumagmpher. wl-hingmmac.

UNITED STATES PATENT OFFICE.

HENRY lV. OLIVER, OF NEV YORK, N. Y.

BEAM-COMPASSES.

SPECIFICATION forming part of Letters Patent No. 415,466, dated November19, 1889.

Serial No. 294,789. (No model.)

To @ZZ wiz/m it may concern:

Be it known that I, HENRY IV. OLIVER, of the city, county, and State ofNew York, have invented a new and Improved Drawing Implement, of whichthe following is a full, clear, and exact description.

My invention relates to beam-Compasses;

Aand its object is to provide a new and improved drawing implementcombining various instruments, and which is always ready for immediateuse and is susceptible of the most accurate and perfect adjustment.

The invention consists in the construction and arrangement of certainparts and details and combinations of the same, as will be lfullydescribed hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of my improvement as applied for drawingcircles with the hook-pen. Fig. 2 is an enlarged cross-section of myimprovement on the line :c Qc of Fig. l. Fig. 3 is a similar view of thesame on the line y y of Fig. l. Fig. 4 is an enlarged longitudinalmainly sectional elevation of one end of my improvement. Fig. is anenlarged sectional elevation of part of the eX- tension-beam. Fig. 6 isa plan View of my improvement applied as a T-square, and Fig. 7 isalongitudinal section of the leg partially broken away.

My improved drawing implement is provided with an extension-beam A,consisting of, the shell B, in which is fitted to slide the rod C,adapted to be secured to said shell B at any .desired point by aset-screw D, screwing into a projection on the inner end of the shell B,and screwing against one end E of the spring-plate E, fastened to thetop of the shell B, and extending at its other end into a slot formed inthe top of said shell B. r@he end E of the spring-plate E is pressed incon tact with the top of the rod C by adjusting said set-screw D, thuspreventing the rod from sliding in the shell B. The other end E2 of thespring-plate E is bent downward and passes through the slot in the topof the shell B, and is adapted to engage a notch C', formed in the rod Cnea-r its inner end, thus preventing the rod C from being pulled out ofthe shell B entirely, as the said bent end E2 engages said notch C', asillustrated in Fig. 5. The beam A, when in this position, is extended toits full length.

On the shell B is held ad j ustably a leg F, provided with the socket G,fitting on the shell B, with its sides and top, and carrying anadjustable foot or bottom piece H, secured on a U-shaped frame I,adapted to slide vertically in grooves G', formed on the insides of thesides of the socket G, as shown in Fig. 2.

From the top of the U-shaped frame I extends upward and through the topof t-he socket G a bolt J, on which screws a nut K against the top ofsaid socket G, so that the frame I, with its foot II, is raised orlowered, and said foot II is brought into or out of contact with thebottom of the shell B, thus securing the leg F to the shell l5 orunfastening it from the same, in order to slide it to any desired pointon the said shell. Theupper end J of the bolt J is reduced and notthreaded, and on it is held to turn freely the knob or swivel L, whichrests on top of the nut K, and is held in place by the head of a screwL, secured to the bolt J.

On the bottom ot' the socket G is formed a downwardly-extending lug G2,on which is pivoted the point N, held in a vertical position by thelocking device O, consisting of the locking-bolt O', held to slide inthe upper part of the point N, and being provided on its top with a lugO2, adapted to engage acorresponding notch G3, formed on the lower endof the lug G. A coiled spring O3 is held in the point N and presses thebolt O upward, so that the lng O2 engages the notch G3, and thus holdsthe point N in a locked vertical position. The bolt O projects at twoopposite sides of the point N, so that the operator can convenientlytake hold of the bolt and press it downward whenever he desires to swingthe point N out of its Vertical position. This downward movement of thebolt O compresses the spring O3 and disengages the lug O2 from the notchG3, so that the point N can now be turned on its pivot on the lug G2 toa horizontal or inclined posit-ion or folded up against the beam A.IVhen the operator swings the point N into a vertical posit-ion ICQ Wis.

again, the compressed spring O3 forces the bolt O upward, so that thelug O2 snaps into the notch Gr3 again, thus locking t-hevpoint N in avertical position.

On the outer end of the rod C is rigidly secured a holder P, in which isheld to slide longitudinally acarriage P', on which `are pivoted thepencil Q, the pen R, and the point S. Each of these three pivoted partsis provided with a locking device O, as above described, and serving tohold either the pen, pencil, or point in an inclined or verticalpositio'n,sothat either of the three can be used when the others areswung out of the perpendicular line, as shown in Figs. l and 4. The lugsO2 of each bolt O engage in this case the notches P2, formed on thecarriage P. The longitudinal movement of thecarriage P is 'accomplishedby a screw T, turning in suitable bearings in the holder P, providedwith a screw-thread, on which screws the lug P3 of the carriage P. Thelug P3 projects into a recess formed in the holder P, and when the screwT is turned the carriage P slides forward or backward on the holder P,whereby a very accurate adjustment of the pen, pencil, or point can behad.

On top of the holder P is held to turn freely the knob L2, of the sameshape as the knob L and serving the same purpose-that is, to enable theoperator to take hold of the knobs L and L2 with his fingers, and thenswing the beam on the point S without twisting his iingers in doing so.

Near the inner end of the shell B and on one side of the same isarranged the head M, serving to adapt the shell B for use as a T-square'or bevel. The head M is provided with a plate M, pivoted at a2 tosaid shell B, and having the semicircular end n3, provided with thenotches a4, adapted to be engaged by the free pointed end of the springV, secured to said shell B. On the other end of the plate M are pivotedthe arms NV and IV', each provided with a flanged edge IW, and having anedge W'S, standing at right angles to the flange W2, so that when thearms lV and IV are eX- tended, as shown in Fig. (l, the edges W3 meet,whereby one straight edge is formed by the two flanged edges 72. Eachedge W3 is provided with a notch engaging the shank of a rivet a5,secured to the plate M. A similar rivet n is placed in a straight linewith the pivot n2 of the plate M and the other rivet n, so that themovement of each arm lV is limited to one quarter-tu rn.

. When the arms IN and lV are extended, as shown in Fig. (S, so thattheedges NVK rest l against the rivet n, the spring V engages the centralnotch in the. plate M whereby the shell B and the head M form aT-square, and can be used as such. 'lhe'arms WV and NV stand, in thiscase, at right angles to the shell The operator can turn the plate M sothat tral notch, whereby the operator is enabled to, turn the plate llluntil the flanged edges NVZ of the arms IV and lV stand at any desiredangle to the shell B, so that the instrument can be used as a bevel fordrawing inclined lines or for other purposes. The pointed end of thespringV engages, in this case, a corresponding notch on the semicircularend of the plate h and thus holds the head M in an inclined position tothe beam A.

It will be seen that the leg F can be adjusted on the shell B for anydesired point, and the rod C can be drawn out of the shell B to anydesired length, and then fastened by the set-screw D, so that theoperator is enabled to draw circles of any desired diameter by usingeither the pencil Q or the pen R; or the operator can measure certainlengths by using the points N and S. It is understood that twoof thethree (the pen, pencil, and point) are thrown out of a perpendicularposition when the third one is in use. In order to throw either of thethree out of a perpendicular line, it is necessary that the operatorshould press the bolt O downward and then swing the respective part toone side.

A very accurate adjustment can be made by turning the screw T so thatthe carriage P slides either inward or outward on the holder P.

When the operator desires to use part of my improvement as a T-square,he removes the leg F and the extension-rod C, after which he adjusts thehead M, as above described, and shown in Fig. 6.

Having thus fully described Amy invention,

I claim as new and desire to secure by Letters Patent-` r l. In adrawing implement, the combinalion, with an extension-beam, of a legcarrying a pointer and held adjustably on said beam, a knob held to turnloosely on said leg, a holder carrying a pen, pencil, and other pointand secured to said beam, and a second knob held to turn loosely on saidholder, substantially as shown and described..

2'. In a drawing implement, the combination, with a shell and a leg heldadjustably on said shell, of a rod telescoping in said shell, a holdersecured to the outer end of said rod, a carriage carrying a pen, pencil,

and pointer and adapted to slide on said holder, and means for holdingthe said pen, pencil, and pointer up, so that. any of them will be outof the way while the third is in use, substantially as shown anddescribed.

In a drawing implement, the combination, with a shell and a leg heldvadjustably on said shell, of a rod telescoping in said shell, a screwfor fastening said rod to, said shell, a holder secured to the outer endof said rod, a carriage carrying the pen, pencil, and point and adaptedto slide on said holder, and a screw for moving said carriage inward loroutward on said holder, substantially as shown and described. the pointof the Vspring V disengages the ceni Il. In a drawing implement, thecombination, with a shell, of a spring-plate held near one end of saidshell, a screw screwing in said I O'O IOS shell and against one end ofsaid spring-pla.te, and a rod telescopin g in said shell and adapted tobe engaged by one end of said spring-plate, substantially as described,so that said rod can be held at any desired point by the setscrew, asset forth.

5. In a drawing implement, the combination, with a shell, of aspring-plate held near one end of said shell and extending to a slot inthe said shell, and a rod telescoping in said shell and provided on itsinner end with a notch adapted to be engaged by the inner end of saidspring-plate, so as to prevent said rod from being drawn out of theshell, substan tially as shown and described.

6. In a drawing implement, the combination, with a shell, of a socketfitting over said shell and carrying a point, a foot-piece adapted toengage the bottom edge of said shell and secured to a frame adapted toslide vertically in said socket, a screwrod fastened to said frame andpassing through the top plate of the socket, and a nut screwing on saidscrew-rod and against said socket, so as to press said foot-'pieceagainst the bottom edge of said shell, whereby the socket isI fastenedto the shell, substantially as shown and described.

7. In a drawing implement, the combination, with a shell, of a socketfitting over said shell and carrying a point, a foot-piece adapted toengage the bottom edge of said shell and secured to a frame adapted toslide vertically in said socket, a screw-rod fastened to said frame andpassing through the top plate of the socket, a nut screwing on saidscrew-rod and against said socket, so as to press said foot-pieceagainst the bottom edge of said shell, whereby the socket is fastened tothe shell, and a knob turning loosely on the upper reduced end of saidscrew-rod, substantially as shown and described.

8. In a drawing implement, the combination, with a carrier adapt-ed tobe secured to a beam and provided with a downwardly-projecting lughaving a notched end, of a point pivoted to the said lug, and a boltcarried by the point and engaging the notch of the lug, substantially asdescribed.

9. In a drawing implement, the combination, with a socket adapted to besecured to a beam and provided with alug projecting from its under side,said lug having a notch in its end, of a point pivoted to the lug andprovided with a socket, a sliding bolt held in the socket, and a springfor pressing the bolt into d engagement with the notch of the lug,substantially as herein shown and described.

10. In a drawing implement, the combination, with a holdersecured to oneend of the beam, of a carriage adapted to slide vertically on saidholder, a pen, pencil, and point pivoted on said carriage, and a screwturning in said holder and engaging a threaded lug on the said carriage,substantially as shown and described.

Il. In a drawing implement, the combination, with a carriage adapted toslide longitudinally, of a pen, pencil, and point pivoted on saidcarriage, and a locking mechanism for locking the said pen, pencil, andpoint in a vertical or horizontal position, substantially as shown anddescribed.

HENRY XV. OLIVER.

Witnesses:

EDGAR TAjrE, EDW. M. CLARK.

